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#%expression

2.4 Expression Wrapper: #%expression

(#%expression expr)
Produces the same result as expr. The only use of #%expression is to force the parsing of a form as an expression.

Examples:

> (#%expression (+ 1 2))

3

> (#%expression (define x 10))

eval:505:0: define: not allowed in an expression context

in: (define x 10)